package com.lagou.rpc;

import com.lagou.rpc.Serializer;
import io.netty.buffer.ByteBuf;
import io.netty.channel.ChannelHandlerContext;
import io.netty.handler.codec.ByteToMessageDecoder;

import java.util.List;

public class RpcDecoder extends ByteToMessageDecoder {

    private Class<?> clazz;
    private Serializer serializer;

    public RpcDecoder(Class<?> clazz, Serializer serializer) {
        this.clazz = clazz;
        this.serializer = serializer;
    }

    @Override
    protected void decode(ChannelHandlerContext channelHandlerContext, ByteBuf msg, List<Object> list) throws Exception {
        byte[] bytes = new byte[msg.readableBytes()];
        msg.readBytes(bytes);
        Object deserialize = serializer.deserialize(clazz, bytes);
        list.add(deserialize);
    }
}
